#tf {
    position: relative;
    justify-content: space-around;
    /*display: flex;*/
}
body{
    background-color: #f1f1f1;
    text-decoration: none;
    font-size: 35px;
    width: 640px;
    display: block;
    margin: auto;
    position: relative;
}

.top-container{
    background-color:#33ccff;
    text-align: center;
    font-size: 45px;
    color:#ffffff;
    padding: 25px 5px;
    width: 100% ;
}

/*.back_banner{
    background-image: url(/img/箭头.png);
    background-size: 100% 100%;
    float: left;
    height: 20px;
    width: 13px;
    position: absolute;
    left: 6%;
    top: 50%;
    -webkit-transform: translate(-50%,-50%);
    transform: translate(-50%,-50%);
    cursor: pointer;
} */

.title-name{
    float: right;
    margin-right: 2%;
    margin-top: 2%;
    font-size: 20px;
}

table {
    position: relative;
    width: 90%;
    border: 1px solid black;
    background-color: #fff;
    border-collapse:collapse;
    margin: 20px auto;
    table-layout: fixed;

}

td{
   padding: 7px 10px;
}

tr{

}
.tf-1st{
    text-align: center;
    font-size: 20px;
    border-bottom: 1px solid #cccccc;
}

.tf-2nd{
    text-align: center;
    font-size: 15px;
    color: #aaaaaa;
    border-bottom: none;
}

.tf-3rd{
    font-size: 20px;
    border-bottom: 1px solid #cccccc;
}

.tf-4st{
    font-size: 20px;
    text-align: center;
}

a{
    display: block;
    color:#33ccff;
    text-decoration: none;

}
a:visited{
    color:#33ccff;
}
a:hover {
    color: #6495ED;
}

.state0{
    color:#aaaaaa;
}

.state1{
    color: lawngreen;
}

.state2{
    color:red;
}